Home / 55,485.99-83,237.28-20,422.98

Finding the Fourth Proportional to 55,485.99, 83,237.28 and 20,422.98

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Solution

The fourth proportional to 55,485.99, 83,237.28 and 20,422.98 is: 30,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485.99 : 83,237.28 = 20,422.98 : x
  2. Step 2: Convert to fraction form
    55,485.99/83,237.28 = 20,422.98/x
  3. Step 3: Cross multiply
    55,485.99x = 83,237.28 × 20,422.98
  4. Step 4: Simplify right side
    55,485.99x = 1,699,953,304.69
  5. Step 5: Solve for x
    x = 1,699,953,304.69/55,485.99
  6. Step 6: Final answer
    x = 30,637.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.